It imposses hierarchy and a division of labour among processors. Only one designated processor, the master, controls (in a tightly coupled arrangement) slave processors dedicated to specific functions.
It waits for client-initiated requests.
Executes many requests at the same time.
Takes care of VIP clients first.
Initiates and runs background task activity.
Grown bigger and faster.
With a transaction server, the client invokes remote procedures that reside on the server with an SQL database engine. These remote procedures on the server execute a group of SQL statements. The network exchange consists of a single request/reply message. The SQL statements either all succeed or fail as a unit.
Network OS extension
Binary large objects (BLOBs)
Global directories and Network yellow pages
Authentication and Authorization services
Database and transaction services
Object- oriented services
ACID is a term coined by Andrew Reuter in 1983, which stands for Atomicity, Consistence, Isolation and Durability.
ACID property is the basic property for transaction processing.
A - atomicity
C - consistency
I - isolation
D - durability